nuclear magnetic resonance
the selective absorption of electromagnetic radiation by an atomic nucleus in the presence of a strong, static, magnetic field: used in research and in medicine to monitor tissue metabolism and to distinguish between normal and abnormal cells. Abbreviation: NMR: Compare MRI.
Origin of nuclear magnetic resonance
1pronunciation note For nuclear magnetic resonance
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use nuclear magnetic resonance in a sentence
The answer lies in the atomic world and its quantum properties, specifically nuclear magnetic resonance—that’s where the “M” and “R” in fMRI come from.
Other methods, with unfriendly names like “nuclear magnetic resonance spectroscopy,” are just as expensive and finicky.
DeepMind’s AlphaFold Is Close to Solving One of Biology’s Greatest Challenges | Shelly Fan | December 15, 2020 | Singularity HubMore recently, two other experimental methods—nuclear magnetic resonance and cryogenic electron microscopy—have also been used.
In a major scientific breakthrough, A.I. predicts the exact shape of proteins | Jeremy Kahn | November 30, 2020 | Fortune
British Dictionary definitions for nuclear magnetic resonance
a technique for determining the magnetic moments of nuclei by subjecting a substance to high-frequency radiation and a large magnetic field. The technique is used as a method of determining structure: Abbreviation: NMR See also electron spin resonance
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for nuclear magnetic resonance
The absorption of electromagnetic energy (typically radio waves) by the nuclei of atoms placed in a strong magnetic field. The nuclei of different atoms absorb unique frequencies of radiation depending on their environment, thus by observing which frequencies are absorbed by a sample placed in a strong magnetic field (and later emitted again, when the magnetic field is removed), it is possible to learn much about the sample's makeup and structure. Nuclear magnetic resonance has no known side effects on the human body, and is therefore used to analyze soft body tissues in magnetic resonance imaging (MRI).
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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